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| Cannabis in pregnancy ： ウィキペディア英語版 |
Cannabis in pregnancy
Cannabis consumption in pregnancy might be associated with restrictions in growth of the fetus, miscarriage, and cognitive deficits in offspring based on animal studies, however there is limited evidence for this in humans at this time.〔 The American Congress of Obstetricians and Gynecologists recommended that cannabis use be stopped before and during pregnancy.
==Health effects==
Although it is difficult to draw firm conclusions, there is some evidence that prenatal exposure to marijuana is associated with deficits in language, attention, cognitive performance, and delinquent behaviors. THC exposure in rats during the prenatal developmental phase may cause epigenetic changes in gene expression, but there is limited knowledge about the risk for psychiatric disorders because of ethical barriers to studying the developing human brain. While animal studies cannot take into account factors that could influence the effects of cannabis on human maternal exposure, such as environmental and social factors,〔 a 2011 review of rodent studies by Campolongo ''et al.'' said there was "... increasing evidence from animal studies showing that cannabinoid drugs ... induce enduring neurobehavioral abnormalities in the exposed offspring ..." Campolongo ''et al.'' added that "clinical studies report hyperactivity, cognitive impairments and altered emotionality in humans exposed in utero to cannabis".〔 A 2015 review found that cannabis use by pregnant mothers impaired brain maturation in their children, and that it also predisposed their children to neurodevelopmental disorders.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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